CA2505007C - Proprotor blade with leading edge slot - Google Patents

Proprotor blade with leading edge slot Download PDF

Info

Publication number: CA2505007C
Authority: CA; Canada
Prior art keywords: slat; leading edge; airfoil; proprotor; coupling
Prior art date: 2003-01-23
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Lifetime

Application number

CA2505007A

Other languages

English (en)

French (fr)

Other versions

CA2505007A1 (en

Inventor

Daniel B. Robertson

Dudley E. Smith

Charles L. Hollimon

Jimmy C. Narramore

Robert B. Mullins

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Bell Helicopter Textron Inc

Original Assignee

Bell Helicopter Textron Inc

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2003-01-23

Filing date

2003-01-23

Publication date

2010-05-11

2003-01-23 Application filed by Bell Helicopter Textron Inc filed Critical Bell Helicopter Textron Inc

2004-08-12 Publication of CA2505007A1 publication Critical patent/CA2505007A1/en

2010-05-11 Application granted granted Critical

2010-05-11 Publication of CA2505007C publication Critical patent/CA2505007C/en

2023-01-23 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

230000005540 biological transmission Effects 0.000 claims description 4
238000000034 method Methods 0.000 claims description 4
230000008878 coupling Effects 0.000 claims 15
238000010168 coupling process Methods 0.000 claims 15
238000005859 coupling reaction Methods 0.000 claims 15
230000000712 assembly Effects 0.000 description 21
238000000429 assembly Methods 0.000 description 21
230000008901 benefit Effects 0.000 description 6
238000000926 separation method Methods 0.000 description 3
230000002411 adverse Effects 0.000 description 2
238000013459 approach Methods 0.000 description 2
238000005452 bending Methods 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
230000007246 mechanism Effects 0.000 description 2
238000011160 research Methods 0.000 description 2
230000007704 transition Effects 0.000 description 2
239000004809 Teflon Substances 0.000 description 1
229920006362 Teflon® Polymers 0.000 description 1
238000009530 blood pressure measurement Methods 0.000 description 1
230000008859 change Effects 0.000 description 1
230000001934 delay Effects 0.000 description 1
230000003111 delayed effect Effects 0.000 description 1
238000013461 design Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000002783 friction material Substances 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000000463 material Substances 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
230000009467 reduction Effects 0.000 description 1
230000008439 repair process Effects 0.000 description 1
239000000779 smoke Substances 0.000 description 1
BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
238000012546 transfer Methods 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/16—Blades
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/32—Rotors
- B64C27/46—Blades
- B64C27/467—Aerodynamic features
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C29/00—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
- B64C29/0008—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded
- B64C29/0016—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers
- B64C29/0033—Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft having its flight directional axis horizontal when grounded the lift during taking-off being created by free or ducted propellers or by blowers the propellers being tiltable relative to the fuselage

Landscapes

Engineering & Computer Science (AREA)
Aviation & Aerospace Engineering (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
Turbine Rotor Nozzle Sealing (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Tires In General (AREA)

CA2505007A 2003-01-23 2003-01-23 Proprotor blade with leading edge slot Expired - Lifetime CA2505007C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/US2003/002049 WO2004067380A1 (en)	2003-01-23	2003-01-23	Proprotor blade with leading edge slot

Publications (2)

Publication Number	Publication Date
CA2505007A1 CA2505007A1 (en)	2004-08-12
CA2505007C true CA2505007C (en)	2010-05-11

Family

ID=32823163

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA2505007A Expired - Lifetime CA2505007C (en)	2003-01-23	2003-01-23	Proprotor blade with leading edge slot

Country Status (8)

Country	Link
US (1)	US7594625B2 (de)
EP (1)	EP1585665B1 (de)
CN (1)	CN100372735C (de)
AU (1)	AU2003210634A1 (de)
BR (1)	BR0317808A (de)
CA (1)	CA2505007C (de)
DE (2)	DE03815629T1 (de)
WO (1)	WO2004067380A1 (de)

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FR2924681B1 (fr) *	2007-12-05	2010-01-01	Onera (Off Nat Aerospatiale)	Element aerodynamique allonge deformable en torsion
EP2123557B1 (de) *	2008-05-22	2011-04-27	Agusta S.p.A.	Drehmomentausgleichs-Heckrotorblatt für Hubschrauber
EP2123556B1 (de) *	2008-05-22	2010-12-08	Agusta S.p.A.	Drehmomentausgleichs-Heckrotorblatt für Hubschrauber
DK200800723A (en) *	2008-05-27	2009-11-28	Fo900 Invest Aps	Wind turbine blade with aerodynamic slit near the root
ES2330500B1 (es) *	2008-05-30	2010-09-13	GAMESA INNOVATION & TECHNOLOGY, S.L. UNIPERSONAL	Pala de aerogenerador con elementos hipersustentadores.
GB0810724D0 (en) *	2008-06-12	2008-07-16	Airbus Uk Ltd	Slat assembly
CA2787421C (en)	2010-02-05	2014-12-30	Bell Helicopter Textron Inc.	Apparatus for attaching a member to a core-stiffened structure and a combination thereof
US20110142676A1 (en) *	2010-11-16	2011-06-16	General Electric Company	Rotor blade assembly having an auxiliary blade
PT2626298E (pt) *	2012-02-09	2014-09-22	Agustawestland Spa	Lâmina de rotor aeronáutico e método de fabrico relativo
US9446843B2 (en) *	2012-03-27	2016-09-20	The Boeing Company	Enhanced performance rotorcraft rotor blade
US9211950B2 (en)	2012-05-04	2015-12-15	Sikorsky Aircraft Corporation	Multi-element rotor blade
EP2912270B1 (de) *	2012-10-23	2023-04-26	General Electric Company	Rohrloses schuberzeugungssystem
RU2013128924A (ru) *	2013-06-25	2014-12-27	Геворг Сережаевич Нороян	Ветряная турбина для электромобиля
CN103708029A (zh) *	2014-01-06	2014-04-09	姚昊	轻型飞行器
CN103754363B (zh) *	2014-02-11	2015-10-14	谷梦若	旋翼翼梢不变距且增升的直升机旋翼系统
US20150316025A1 (en) *	2014-05-01	2015-11-05	Siemens Energy, Inc.	Aerodynamic device for a rotor blade of a wind turbine
FR3031082B1 (fr) *	2014-12-30	2017-02-10	Airbus Operations Sas	Ensemble de jonction raccordant un carenage ventral d'aeronef au fuselage pourvu d'un raidisseur en position particuliere
US20160244147A1 (en)	2015-02-20	2016-08-25	Northrop Grumman Systems Corporation	Quiet slat propeller
US9981736B2 (en)	2016-05-16	2018-05-29	Bell Helicopter Textron Inc.	Folding proprotor blade assembly having integral tang assembly
US10239604B2 (en) *	2016-05-21	2019-03-26	Bell Helicopter Textron Inc.	Structurally biased proprotor blade assembly
US10421541B2 (en)	2016-08-10	2019-09-24	Bell Helicopter Textron Inc.	Aircraft with tilting cross-flow fan wings
US10279900B2 (en)	2016-08-10	2019-05-07	Bell Helicopter Textron Inc.	Rotorcraft variable thrust cross-flow fan systems
US10377480B2 (en)	2016-08-10	2019-08-13	Bell Helicopter Textron Inc.	Apparatus and method for directing thrust from tilting cross-flow fan wings on an aircraft
US10479495B2 (en)	2016-08-10	2019-11-19	Bell Helicopter Textron Inc.	Aircraft tail with cross-flow fan systems
US10106253B2 (en)	2016-08-31	2018-10-23	Bell Helicopter Textron Inc.	Tilting ducted fan aircraft generating a pitch control moment
US10293931B2 (en)	2016-08-31	2019-05-21	Bell Helicopter Textron Inc.	Aircraft generating a triaxial dynamic thrust matrix
US10207793B2 (en) *	2016-11-30	2019-02-19	Bell Helicopter Textron Inc.	Rotor blade having variable twist
US10618632B2 (en) *	2017-02-13	2020-04-14	Bell Helicopter Textron Inc.	Foldable rotor blade assembly
US10384776B2 (en)	2017-02-22	2019-08-20	Bell Helicopter Textron Inc.	Tiltrotor aircraft having vertical lift and hover augmentation
CN106986005B (zh) *	2017-03-29	2024-02-13	北京华信智航科技有限公司	一种油动倾转旋翼飞机的倾转结构
US10604234B2 (en) *	2017-06-17	2020-03-31	Bell Helicopter Textron Inc.	Method and apparatus to improve lift to drag ratio of a rotor blade
WO2019019161A1 (zh) *	2017-07-28	2019-01-31	深圳市大疆创新科技有限公司	螺旋桨、动力组件及飞行器
US10814967B2 (en)	2017-08-28	2020-10-27	Textron Innovations Inc.	Cargo transportation system having perimeter propulsion
US10836481B2 (en) *	2017-11-09	2020-11-17	Bell Helicopter Textron Inc.	Biplane tiltrotor aircraft
USD891351S1 (en)	2017-12-15	2020-07-28	Bell Helicopter Textron Inc.	Rotor blade
EP3674211B1 (de) *	2018-12-28	2021-02-17	LEONARDO S.p.A.	Wandelbares flugzeug und zugehöriges steuerungsverfahren
CN109747818B (zh) *	2018-12-30	2021-09-03	南京航空航天大学	基于桨尖质量射流的直升机旋翼气动干扰控制方法
MX2019003715A (es) *	2019-03-29	2020-09-30	Rosado Rodrigo Gallardo	Ala rotativa de autorotacion inducida.
CN110789709B (zh) *	2019-10-12	2022-10-11	哈尔滨飞机工业集团有限责任公司	一种具有前缘缝翼的复合材料水平尾翼
CN110683033B (zh) *	2019-10-31	2023-03-21	哈尔滨工程大学	一种可调距式旋翼
CN116923687A (zh) *	2022-04-08	2023-10-24	北京三快在线科技有限公司	桨叶、螺旋桨和飞行器

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US2007506A (en) *	1932-04-06	1935-07-09	Bendix Aviat Corp	Propeller
US2026482A (en) *	1932-09-09	1935-12-31	Mattioli Gian Domenico	Control for aerofoils, etc.
US2135887A (en) *	1935-06-07	1938-11-08	Fairey Charles Richard	Blade for airscrews and the like
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US2483480A (en) *	1944-09-14	1949-10-04	Edward A Stalker	Spanwise variable lift control for rotary wings
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US3556439A (en) *	1968-11-22	1971-01-19	Boeing Co	Methods and high lift systems for making an aircraft wing more efficient for takeoffs and landings
US3588273A (en)	1969-03-19	1971-06-28	Honeywell Inc	Control apparatus
FR2249804B1 (de) *	1973-11-06	1976-10-01	Aerospatiale
US4169567A (en) *	1974-12-13	1979-10-02	Tamura Raymond M	Helicopter lifting and propelling apparatus
US4360176A (en) *	1979-11-05	1982-11-23	The Boeing Company	Wing leading edge slat
US4655685A (en)	1985-12-16	1987-04-07	United Technologies Corporation	Helicopter main rotor blade having a short span slot near the tip end
DE3721295C1 (de) *	1987-06-27	1988-12-08	Deutsche Forsch Luft Raumfahrt	Propeller,dessen Blaetter mit einem Vorfluegel versehen sind
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US6932569B2 (en) *	2002-05-17	2005-08-23	Sikorsky Aircraft Corporation	Active control of multi-element rotor blade airfoils
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US6840741B1 (en) *	2003-10-14	2005-01-11	Sikorsky Aircraft Corporation	Leading edge slat airfoil for multi-element rotor blade airfoils

2003
- 2003-01-23 AU AU2003210634A patent/AU2003210634A1/en not_active Abandoned
- 2003-01-23 DE DE03815629T patent/DE03815629T1/de active Pending
- 2003-01-23 CA CA2505007A patent/CA2505007C/en not_active Expired - Lifetime
- 2003-01-23 CN CNB038256673A patent/CN100372735C/zh not_active Expired - Fee Related
- 2003-01-23 EP EP03815629A patent/EP1585665B1/de not_active Expired - Lifetime
- 2003-01-23 BR BR0317808-0A patent/BR0317808A/pt not_active Application Discontinuation
- 2003-01-23 WO PCT/US2003/002049 patent/WO2004067380A1/en not_active Ceased
- 2003-01-23 DE DE60321390T patent/DE60321390D1/de not_active Expired - Lifetime
- 2003-01-23 US US10/543,222 patent/US7594625B2/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
BR0317808A (pt)	2005-11-29
EP1585665B1 (de)	2008-05-28
DE03815629T1 (de)	2006-04-13
CN100372735C (zh)	2008-03-05
AU2003210634A1 (en)	2004-08-23
WO2004067380A1 (en)	2004-08-12
CA2505007A1 (en)	2004-08-12
EP1585665A1 (de)	2005-10-19
CN1714022A (zh)	2005-12-28
DE60321390D1 (de)	2008-07-10
US7594625B2 (en)	2009-09-29
EP1585665A4 (de)	2007-09-12
US20060239824A1 (en)	2006-10-26

Legal Events

Date	Code	Title	Description
2007-02-14	EEER	Examination request
2023-03-27	MKEX	Expiry	Effective date: 20230123

Publication	Publication Date	Title
CA2505007C (en)	2010-05-11	Proprotor blade with leading edge slot
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US20100270435A1 (en)	2010-10-28	Wing efficiency for tilt-rotor aircraft
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